Fitting from compressor to tank?

A picture would be very helpful to determine the correct fitting for your tank. Also to know what fitting diving shop uses! They might only fill to 3200psi max (hp Scuba) What gun(s) do you have? A 3k psi fill isn't much on some guns. This is all vital to getting correct info to you! And, most importantly, when can I visit :ROFLMAO:
Edit: you might need a CGA347 fitting to a Scuba Block (K valve adapter). I have one!
 
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Omega tanks comes with 2 types of valves....
A standard DIN valve... which is what all SCUBA center should be able to fill...
Or the HP3 Valve.... This has a standard Fosters nipple on it....
So what you will need a DIN 300 to Foster QD female adapter....